Coping



mme J. D. DAVIS. GO'PING. No. 522,363. Patented July 3, 1894.

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1Uivrrien STATES@ PATENT Orricn.

JoHNn. DAvIs, or' WILMINGTON, DELAWARE.

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SPECIFICATION' forming part of wLetters Patent No. 522,363, dated July3, 1894.

Application neaApei 20.1894. seal ne. 503,268. foto model.)

To all whom 'it may concern..-

Be it known that I, JOHN D. DAvIs, a citizen of the United States ofAmerica, residing at Wilmington, in the coun-ty'of New Castle and Stateof Delaware, have invented certain new and useful Improvements'inCoping, of whlch the following is a specification.

T his invention relates to an improved metalllc coping for general'use.

T he object of the invention is to provide a coping constructed of casing or metallic plates `suitably secured together to form a hollowinterior which may be filled other suitable material.

A further object is to combine simplicity 1of construction withcheapness in manufacure. For a full and c lea'r understanding of mylnvention reference is to be had tothe accompanylng drawings,"whereincorresponding letters lndicate likev parts in the several views, and inwhich v Figure 1,` is a perspective view of two sect1o ns forming acorner of the coping, parts belng broken away for better illustration.Fig. 2, represents a cross-section of the copingZ talren on the line:2c-m Fig. 1. Fig. 3, is a view 1n elevation of one of the rests orsupports used for the support of one of the ends of a section of coping.Fig. 4, is a detail of a plate or tie bland by means of which lthe endsof two sections are secured together and with Acement or the joint onthe top plate of the coping is protected.

In the drawings, A refers to the coping.

B 1s a top plate of the coping, preferably of V shape in cross-sectionto prevent foreign material from lodging on top of the coping, see Fig.2.

C. C', are rectangular shaped metallic plates of u nequal width' whichform the sides ofthe coping. v

The top plate of the coping has .enlarged portions or rims b on itssidesand depending plates b on its under side near its edges, betweenwhich and the rims the upper ends of plates C and C are secured by boltsor otherwise. rApertures 4are formed in the upper i ends of the plates Cand C and underneath the rims b, so that when the plates v are to besecured to the top plate, these apertures will register with aperturesin the depending plates b in vorder that bolts b2 provided with nuts ontheir ends may be used to secure the side plates to the top plate,.as

shown. Plate C has its lower side edge bent inwardly to form a rest c2upon which one edge d2 of the bottom plate D may' rest and through whichand rest c2 suitable bolts may pass to secure these plates together.

As preferably constructed, a cross-section of the coping would be of theform of a trapezoid. This particular form or shape of construction isfound to be of greater utility and less expensive on account of theslope of the land where coping is usually erected.

- f E are rests upon which the ends of sections of the coping aresupported. These rests consist of two rods F F of unequal length,pointed at their lower ends so that they may be readily inserted in theground, and an upper inclined cross-piece E which connects the rods F Fat points near their upper ends leaving' upper projection e and/e abovethe cross-piece, as shown, to form a support for the ends of the copingto rest upon when said rests are driven into the ground, the incline ofthe cross-piece E to the rods F F corresponding to the incline of thebottom of the coping to its sides. v A

When the surface of the groundvis smooth and the rests are well driveninto the ground, the bottom'pieces D of the coping may be dispensedwith, as the ground itself may serve as a suiicient base for the copingupon which the cement or other similar; material may rest when it isinserted in the interior of the coping. G are inwardly inclinedprojections or ribs on the interior of the plates C C.

- When the bottom plates D are dispensed with and cement is used for theinterior, the coping casing, after the plates have been bolted together,is inverted, bottom upward, and the cement is tilled inthe interior ofthe casing and allowed to set and harden, after which the coping isready to be set up, the ribs on the interior of the side plates aboutwhich the cement has hardened preventing the cement from falling out ofthe casing in case the ground on which the casing is erected should beuneven or should settle at any time. Tie bands G made of thin strips ofmetal, having depending ends g and apertures g' in IOO the middleportions thereof, are placed over the joints on the top of the casingwhich are formed by abutting end sections, and a pin g2 passes throughaperture g in the band, through the joint which may be enlarged at thispoint, and through corresponding apertures in the bottom plates D,should the latter plates be used, and is then driven into the ground tohold the bands as well as the sections in place. Tie bands H havingdepending ends h' of similar construction to bands G' are likewise usedfor the corners of the coping, see Fig. 1.

The wider or narrower sides of the coping may be used outwardlydepending upon the slope of the land where the coping is placed.

I-Iaving thus described my invention, what I claim is- 1. Thecombination in a coping comprising rectangular shaped metallic platesbolted to gether at their contacting edges, side plates of unequal widthand parallel, rims on the side edges of the top plates, and plates depending from the top plate near said rims, means to secure the upperedges of the side plates between the rims and depending plates, restshaving rods of unequal length sharpj ened at their lower ends, andconnected near their upper ends by cross-pieces, tie bands and pins tosecure the abutting ends `ot the 3o sections of the coping-together andto protect the joints in the upper surface of the coping, and cementforming the interior of the coping, substantially as described and setforth.

2. The combination in a coping, of rectangular shaped metallic platessecured together at their contacting edges, side plates of unequal Widthand parallel, ribs on the interior surfaces of the side plates, rims onthe side edges of the top plates and plates depending from the topplates, near said rims, means to secure the plates of the casingtogether near their contacting edges, rests having rods of unequallength sharpened at their lower ends, cross-pieces connecting the rodsnear their upper ends, tie bands, and means to secure the same over thejoints on the upper surface of the coping, and a plastic materialforming the interior of the coping, as and for the purposes set forth.

In testimony whereof I aiiix my signature in presence of two witnesses.

JOHN D. DAVIS.

Witnesses:

S. B. HUssELMAN, J. MALIN CLARK.

